package com.controller;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.alipay.api.request.AlipayTradePrecreateRequest;
import com.alipay.api.response.AlipayTradePrecreateResponse;
import com.config.AlipayConfig;
import com.entity.AlipayBean;
import com.entity.CartEntity;
import com.utils.R;

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.apache.ibatis.annotations.Result;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Random;
import java.util.UUID;

@RestController
@RequestMapping("/alipay")
@Api(tags = "支付宝")
@CrossOrigin
public class AlipayController {


    @PostMapping("/pay")
    @ResponseBody
    //, HttpServletRequest request,HttpServletResponse response
    public String pay(@RequestBody AlipayBean alipayBean) throws IOException {
        System.out.println(alipayBean);

        //获得初始化的AlipayClient
        AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.APP_ID, AlipayConfig.APP_PRIVATE_KEY, "json", AlipayConfig.CHARSET, AlipayConfig.ALIPAY_PUBLIC_KEY, AlipayConfig.sign_type);

        //设置请求参数
        AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();
        alipayRequest.setReturnUrl(AlipayConfig.return_url);
        alipayRequest.setNotifyUrl(AlipayConfig.notify_url);
        //System.out.println(request);
        System.out.println(alipayBean.getTotal_amount());
        //商户订单号，商户网站订单系统中唯一订单号，必填
        String out_trade_no = new String(alipayBean.getOut_trade_no().getBytes("ISO-8859-1"), "UTF-8");
        //付款金额，必填
        String total_amount = new String(alipayBean.getTotal_amount().getBytes("ISO-8859-1"), "UTF-8");
        //订单名称，必填
        String subject = new String(alipayBean.getSubject().getBytes("ISO-8859-1"), "UTF-8");
        //商品描述，可空
        String body = new String(alipayBean.getBody().getBytes("ISO-8859-1"), "UTF-8");

        alipayRequest.setBizContent("{\"out_trade_no\":\"" + out_trade_no + "\","
                + "\"total_amount\":\"" + total_amount + "\","
                + "\"subject\":\"" + subject + "\","
                + "\"body\":\"" + body + "\","
                + "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");

        //若想给BizContent增加其他可选请求参数，以增加自定义超时时间参数timeout_express来举例说明
        //alipayRequest.setBizContent("{\"out_trade_no\":\""+ out_trade_no +"\","
        //		+ "\"total_amount\":\""+ total_amount +"\","
        //		+ "\"subject\":\""+ subject +"\","
        //		+ "\"body\":\""+ body +"\","
        //		+ "\"timeout_express\":\"10m\","
        //		+ "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");
        //请求参数可查阅【电脑网站支付的API文档-alipay.trade.page.pay-请求参数】章节

        //请求
        String form = "";
        try {
            form = alipayClient.pageExecute(alipayRequest).getBody(); //调用SDK生成表单
        } catch (AlipayApiException e) {
            e.printStackTrace();
        }
        return form;
    }
}

